Large admin-ui refactor (Performative component system, sidebar nav,
provider/route tabs) plus backend module restructuring.
Admin UI contract fixes (this session):
- Fix Models page crash: useBackends unwraps {backends:[...]}; align
ModelEntry to {model_name, deployments} and ModelsResponse.strategy;
fix add-model body to {model_name, actual_model, backend_name}.
- Fix Backends/Providers health rendering: source per-backend status and
latency from the uptime endpoint (health_checks); narrow Backend type to
the real get_backends shape.
- Route + sidebar-link the previously-unrouted Backends tab.
Verified: cargo test (exit 0), clippy -D warnings (exit 0), fmt --check,
admin-ui tsc + vite build all green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
